Pressure aid on the wiper blade arm



FIG. 1 is a perspective view of pressure aid on the wiper blade arm showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a right side elevational view;

FIG. 6 is a top plan view;

FIG. 7 is a bottom plan view; and,

FIG. 8 is a perspective view; showing my design on the wiper blade arm; the broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a pressure aid on the wiper blade arm, as shown and described. 